Electro chemical cell comprising non-radiation curable solid polymer electrolytes

Abstract

Electrochemical cells comprising solid polymeric electrolytes are composed of a solid polymeric matrix formed by polymerization of organophosphate compounds.

What is claimed is: 
     
       1. An electrochemical cell comprising an anode, a cathode and a homogeneous single-phase solid polymeric electrolyte comprising a compatible organophosphate polymer having a molecular weight in the range of from about 1,000 to about 80,000, an inorganic ion salt and a compatible electrolyte solvent wherein the solvent comprises about 40 to about 80 weight percent of the solid polymeric electrolyte. 
     
     
       2. An electrochemical cell according to claim 1 wherein said organophosphate polymer is polyphosphate. 
     
     
       3. An electrochemical cell electrolyte according to claim 1 wherein said organophosphate is the copolymer of a dichlorophosphate and hydroxy-terminated polyester. 
     
     
       4. An electrochemical cell according to claim 1 wherein said organophosphate is the copolymer of a dichlorophosphate and a hydroxy-terminated polycarbonate. 
     
     
       5. An electrochemical cell according to claim 1 wherein said organophosphate is the copolymer of a dichlorophosphate and a poly(oxyalkylene) glycol. 
     
     
       6. An electrochemical cell according to claim 1 wherein --ORO-- is derived from an hydroxy-terminated compound. 
     
     
       7. An electrochemical cell comprising an anode, a cathode, and a homogeneous single-phase solid polymeric electrolyte comprising an organophosphate polymer containing the repeating unit of Formula I: ##STR2## wherein Z is R', or OR' or NR' 2  ; R' is a hydrocarbyl or oxyhydrocarbyl groups of from 1 to 20 carbon atoms, and R is hydrocarbylene or oxyhydrocarbylene group of from 1 to 20 carbon atoms; and n is an integer having a value between about 10 and 500, an inorganic ionic salt and a compatible electrolyte solvent wherein the solvent comprises about 40 to about 80 weight percent of the solid polymeric electrolyte. 
     
     
       8. An electrochemical cell according to claim 6 wherein said hydroxy-terminated compound is selected from the group consisting of HO(--R'OC(O)R"C(O)O--) m  H, HO(--CH 2  CHR'O--) m  H, HO(--C(O)OR"O--) m  H and HOROH, where R' is a hydrocarbyl or oxyhydrocarbyl group of from 1 to about 20 carbon atoms, R and R" are independently selected hydrocarbylene or oxyhydrocarbylene groups of from 1 to about 20 carbon atoms, and m is an integer from 1 to about 50. 
     
     
       9. An electrochemical cell according to claim 6 wherein n is an integer between 10 and 100. 
     
     
       10. An electrochemical cell according to claim 7 wherein Z is NR' 2 . 
     
     
       11. An electrochemical cell according to claim 7 wherein the anode is an intercalation based anode comprising carbon. 
     
     
       12. An electrochemical cell according to claim 7 wherein the cathode comprises a material selected from the group consisting of V 6  O 13 , lithiated cobalt oxides, lithiated manganese oxides, and lithiated nickel oxides. 
     
     
       13. An electrochemical cell according to claim 12 wherein the anode is an intercalation based anode comprising carbon.